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1. EP0038310 - BALLISTIC PROJECTILE WITH EXTENDABLE FINS

Office
European Patent Office
Application Number 81850057
Application Date 30.03.1981
Publication Number 0038310
Publication Date 21.10.1981
Publication Kind B1
IPC
F42B 10/26
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
42AMMUNITION; BLASTING
BEXPLOSIVE CHARGES, e.g. FOR BLASTING; FIREWORKS; AMMUNITION
10Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
02Stabilising arrangements
26using spin
F42B 10/16
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
42AMMUNITION; BLASTING
BEXPLOSIVE CHARGES, e.g. FOR BLASTING; FIREWORKS; AMMUNITION
10Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
02Stabilising arrangements
14using fins spread or deployed after launch, e.g. after leaving the barrel
16Wrap-around fins
CPC
F42B 10/16
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
42AMMUNITION; BLASTING
BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
10Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
02Stabilising arrangements
14using fins spread or deployed after launch, e.g. after leaving the barrel
16Wrap-around fins
Applicants ANDERSSON, KURT GORAN
AXELSSON, GUNNAR ERNST
BONDESSON, STIG HELMER
BRYNGELSSON, ARNE HJALMAR
FLODIN, GUNNAR RUNE
BARTELSON, NILS ERIK
Inventors ANDERSSON, KURT GORAN
Designated States
Priority Data 8002453 31.03.1980 SE
Title
(DE) Ballistisches Geschoss mit ausspreizbarem Flossenleitwerk.
(EN) BALLISTIC PROJECTILE WITH EXTENDABLE FINS
(FR) Projectile balistique à empennage déployable.
Abstract
(EN)
A ballistic artillery projectile has extensible fins (1) for stabilizing the trajectory in the terminal phase, after an initial spin being imposed on firing. The fins (1) are attached to the projectile (2) by means of torsion bar pivots (3) designed to be twisted on extension of the fins (1) by centrifugal forces, so as to undergo plastic deformation. The fin attachment is intended to render harmless impact forces when the fins (1) hit a stop and locking device in their extended position.

Also published as
NO19813899